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c#serializationjson.net

Serialize only interface properties to JSON with Json.net

With a simple class/interface like this 

public interface IThing
{
    string Name { get; set; }
}

public class Thing : IThing
{
    public int Id { get; set; }
    public string Name { get; set; }
}

How can I get the JSON string with only the "Name" property (only the properties of the underlying interface) ?

Actually, when i make that :

var serialized = JsonConvert.SerializeObject((IThing)theObjToSerialize, Formatting.Indented);
Console.WriteLine(serialized);

I get the full object as JSON (Id + Name);

Solution

  • You can use conditional serialization. Take a look at this link. Basicly, you need to implement the IContractResolver interface, overload the ShouldSerialize method and pass your resolver to the constructor of the Json Serializer.